Patents by Inventor Jun Lei

Jun Lei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9856192
    Abstract: A method for preparing 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene, including: providing a first reactor including a first section, a second section, and a third section, with each section being filled with different catalysts, preheating hexafluoropropylene and hydrogen, and introducing the hexafluoropropylene and the hydrogen to the first reactor to yield a first mixture including: 1,1,1,2,3-pentafluoropropane, 1,1,1,2,3,3-hexafluoropropane, and hydrogen fluoride; introducing the first mixture to a first distillation column to yield 1,1,1,2,3,3-hexafluoropropane at a top of the first distillation column and 1,1,1,2,3-pentafluoropropane and hydrogen fluoride at a bottom of the first distillation column, recycling the 1,1,1,2,3,3-hexafluoropropane to a lower part of the first section of the first reactor, and introducing the 1,1,1,2,3-pentafluoropropane and the hydrogen fluoride to a second reactor to yield a second mixture including: 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoropropene, hydr
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: January 2, 2018
    Assignees: ZHEJIANG QUZHOU JUXIN FLUORINE CHEMICAL CO., LTD., ZHEJIANG QUHUA FLUOR-CHEMISTRY CO., LTD.
    Inventors: Jun Lei, Aiguo Wang, Bo Yang, Yan Zhang, Huadong Zhou, Yang Zhao, Guoan Liu, Yi Zhu, Gang Su
  • Patent number: 9838518
    Abstract: The disclosure relates to a mobile device including a frame assembly with an accommodating space formed therein for disposing functional parts of the mobile device, and a primary display module disposed on an outer side of the frame assembly. The primary display module wraps around a front surface, a back surface, and side surfaces of the mobile device. By the solution of the disclosure, a full-screen mobile device is achieved so that the user may enjoy completely new experience by way of greater display area.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: December 5, 2017
    Assignee: Xiaomi Inc.
    Inventors: Jun Lei, Yuan Gao, Gaocai Han
  • Publication number: 20170144950
    Abstract: A method for preparing 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene, including: providing a first reactor including a first section, a second section, and a third section, with each section being filled with different catalysts, preheating hexafluoropropylene and hydrogen, and introducing the hexafluoropropylene and the hydrogen to the first reactor to yield a first mixture including: 1,1,1,2,3-pentafluoropropane, 1,1,1,2,3,3-hexafluoropropane, and hydrogen fluoride; introducing the first mixture to a first distillation column to yield 1,1,1,2,3,3-hexafluoropropane at a top of the first distillation column and 1,1,1,2,3-pentafluoropropane and hydrogen fluoride at a bottom of the first distillation column, recycling the 1,1,1,2,3,3-hexafluoropropane to a lower part of the first section of the first reactor, and introducing the 1,1,1,2,3-pentafluoropropane and the hydrogen fluoride to a second reactor to yield a second mixture including: 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoropropene, hydro
    Type: Application
    Filed: January 12, 2017
    Publication date: May 25, 2017
    Inventors: Jun LEI, Aiguo WANG, Bo YANG, Yan ZHANG, Huadong ZHOU, Yang ZHAO, Guoan LIU, Yi ZHU, Gang SU
  • Publication number: 20170134562
    Abstract: Disclosed are a method and apparatus for controlling WiHD transmission on a mobile phone, and a mobile phone, where the method for controlling WiHD transmission on a mobile phone includes: receiving a message indicating that a screen of the mobile phone becomes dark; detecting a kernel notification “PM_SUSPEND_PREPARE” of the mobile phone upon reception of the message indicating that the screen of the mobile phone becomes dark; and switching a state of WiHD transmission on the mobile phone according to a detection result. In the embodiments of the disclosure, if music is being played on the mobile phone, even if the screen of the mobile phone is dark, then WiHD transmission will still remain enabled so that the music being played on the mobile phone can be further WiHD-transmitted to thereby improve the experience of a user.
    Type: Application
    Filed: July 28, 2016
    Publication date: May 11, 2017
    Applicants: LE HOLDINGS (BEIJING) CO., LTD., LEMOBILE INFORMATION TECHNOLOGY (BEIJING) CO., LTD.
    Inventor: JUN LEI
  • Patent number: 9643904
    Abstract: A method for preparing 2,3,3,3-tetrafluoropropene, including: a) introducing hexafluoropropylene and hydrogen to a first reactor for reaction in the presence of a catalyst to obtain a first mixture; b) washing and drying the first mixture, and introducing the treated first mixture to a first distillation column to obtain 1,1,1,2,3,3-hexafluoropropane, 1,1,1,2,3-pentafluoropropene, and hexafluoropropylene; recycling the 1,1,1,2,3,3-hexafluoropropane to the first reactor, and introducing the 1,1,1,2,3-pentafluoropropene and the hexafluoropropylene to a second distillation column to yield hexafluoropropylene and 1,1,1,2,3-pentafluoropropene; and recycling the hexafluoropropylene to the first reactor; c) introducing the 1,1,1,2,3-pentafluoropropene and hydrogen to a second reactor in the presence of a catalyst to obtain a second mixture; and d) washing and drying the second mixture, and introducing the second mixture to a third distillation column to yield 1,1,1,2,3-pentafluoropropane; and recycling the 1,1,1,2,3
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: May 9, 2017
    Assignees: ZHEJIANG QUZHOU JUXIN FLUORINE CHEMICAL CO., LTD., ZHEJIANG QUHUA FLUOR-CHEMISTRY CO., LTD.
    Inventors: Jun Lei, Aiguo Wang, Bo Yang, Yan Zhang, Huadong Zhou, Yang Zhao, Yi Zhu, Haili Xia, Haojin Shi
  • Patent number: 9617935
    Abstract: An engine ignition control method and system for controlling ignition timing that computes a predicted crankshaft angular velocity based on prior computed and verified crankshaft angular velocity and acceleration and determines a capture window of the next crankshaft position sensor pickup signal for the verification of the predicted crankshaft angular velocity. The ignition control system also utilizes both crankshaft position pickup signals and the intake manifold air pressure measurements for determining the stroke of the combustion cycle in turn providing more accurately timed signals for the fuel injection and ignition systems. During engine starts, the engine ignition control system performs a series of continuous spark-triggering, determines if each spark-triggering being at the correct or incorrect point in the combustion cycle by detecting if there is any engine acceleration and adjusts the generation of the signal for the next spark-triggering accordingly.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: April 11, 2017
    Assignee: Startec Ltd.
    Inventors: Wai Cheung Ting, Chun Wang, Shi Jun Lei, TianDe Mo
  • Publication number: 20170088493
    Abstract: A method for preparing 2,3,3,3-tetrafluoropropene, including: a) introducing hexafluoropropylene and hydrogen to a first reactor for reaction in the presence of a catalyst to obtain a first mixture; b) washing and drying the first mixture, and introducing the treated first mixture to a first distillation column to obtain 1,1,1,2,3,3-hexafluoropropane, 1,1,1,2,3-pentafluoropropene, and hexafluoropropylene; recycling the 1,1,1,2,3,3-hexafluoropropane to the first reactor, and introducing the 1,1,1,2,3-pentafluoropropene and the hexafluoropropylene to a second distillation column to yield hexafluoropropylene and 1,1,1,2,3-pentafluoropropene; and recycling the hexafluoropropylene to the first reactor; c) introducing the 1,1,1,2,3-pentafluoropropene and hydrogen to a second reactor in the presence of a catalyst to obtain a second mixture; and d) washing and drying the second mixture, and introducing the second mixture to a third distillation column to yield 1,1,1,2,3-pentafluoropropane; and recycling the 1,1,1,2,3
    Type: Application
    Filed: December 13, 2016
    Publication date: March 30, 2017
    Inventors: Jun LEI, Aiguo WANG, Bo YANG, Yan ZHANG, Huadong ZHOU, Yang ZHAO, Yi ZHU, Haili XIA, Haojin SHI
  • Publication number: 20170037794
    Abstract: An engine ignition control method and system for controlling ignition timing that computes a predicted crankshaft angular velocity based on prior computed and verified crankshaft angular velocity and acceleration and determines a capture window of the next crankshaft position sensor pickup signal for the verification of the predicted crankshaft angular velocity. The ignition control system also utilizes both crankshaft position pickup signals and the intake manifold air pressure measurements for determining the stroke of the combustion cycle in turn providing more accurately timed signals for the fuel injection and ignition systems. During engine starts, the engine ignition control system performs a series of continuous spark-triggering, determines if each spark-triggering being at the correct or incorrect point in the combustion cycle by detecting if there is any engine acceleration and adjusts the generation of the signal for the next spark-triggering accordingly.
    Type: Application
    Filed: October 18, 2016
    Publication date: February 9, 2017
    Inventors: Wai Cheung Ting, Chun Wang, Shi Jun Lei, TianDe Mo
  • Publication number: 20170032415
    Abstract: A markdown budget user interface is provided that implements access to large-scale computational resources capable of concurrently manipulating a number of multi-million item data sets and that allows a retailer to specify inputs. The inputs include a markdown budget constraint that applies across all retailer stores, a group of store-product data sets that each include initial prices and markdown start prices of different combinations of products within all of the retailer stores, and a markdown objective, selected from a group including profit, revenue, and sales volume, to be maximized within the markdown budget constraint. The inputs are received from the retailer using the markdown budget user interface and the large-scale computational resources are invoked to determine a markdown recommendation that includes an indication of the store-product data sets that satisfy both the markdown budget constraint and the markdown objective. The markdown recommendation is provided to the retailer.
    Type: Application
    Filed: July 31, 2015
    Publication date: February 2, 2017
    Inventors: Jun Lei Chen, Xiao Chun Li, Emily A. Port, Siqun Wang, Emrah Zarifoglu
  • Publication number: 20160381194
    Abstract: The disclosure relates to a mobile device including a frame assembly with an accommodating space formed therein for disposing functional parts of the mobile device, and a primary display module disposed on an outer side of the frame assembly. The primary display module wraps around a front surface, a back surface, and side surfaces of the mobile device. By the solution of the disclosure, a full-screen mobile device is achieved so that the user may enjoy completely new experience by way of greater display area.
    Type: Application
    Filed: February 29, 2016
    Publication date: December 29, 2016
    Applicant: Xiaomi Inc.
    Inventors: Jun LEI, Yuan GAO, Gaocai HAN
  • Patent number: 9515795
    Abstract: Disclosed in present invention is a wireless communication system, comprising: a CAP, for determining a structure of a current physical frame according to scheduled transmission resources, and sending information for indicating the structure of the current physical frame in the current physical frame; and at least one STA communicating with the CAP, for determining the structure of the current physical frame according to the information for indicating the structure of the current physical frame, the length of each physical frame depending on the structure of the current physical frame and being not fixed. Also disclosed are two devices for wireless communication.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: December 6, 2016
    Assignee: Nufront Mobile Communications Technology Co., Ltd.
    Inventors: Dongshan Bao, Jing Wang, Shenfa Liu, Jun Lei, Lijun Pan, Zhigang Yan, Feifei Wang
  • Patent number: 9500175
    Abstract: An engine ignition control method and system for controlling ignition timing that computes a predicted crankshaft angular velocity based on prior computed and verified crankshaft angular velocity and acceleration and determines a capture window of the next crankshaft position sensor pickup signal for the verification of the predicted crankshaft angular velocity. The ignition control system also utilizes both crankshaft position pickup signals and the intake manifold air pressure measurements for determining the stroke of the combustion cycle in turn providing more accurately timed signals for the fuel injection and ignition systems. During engine starts, the engine ignition control system performs a series of continuous spark-triggering, determines if each spark-triggering being at the correct or incorrect point in the combustion cycle by detecting if there is any engine acceleration and adjusts the generation of the signal for the next spark-triggering accordingly.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: November 22, 2016
    Assignee: Startec Ltd.
    Inventors: Wai Cheung Ting, Chun Wang, Shi Jun Lei, TianDe Mo
  • Patent number: 9472602
    Abstract: A display device is provided. A photovoltaic material (61) is evenly disposed in a display layer (6), so that an array formed by the photovoltaic material (61) forms light transmitting units (62) and the photovoltaic material (61) forms a path. Light emitted by a backlight layer (5) and ambient light are absorbed without affecting the light emission of the display layer (6), and are converted into current. When the current converted from light energy is used for a mobile terminal, the stand by time of the mobile terminal may be increased.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: October 18, 2016
    Assignee: Xiaomi Inc.
    Inventors: Duo Xu, Bin Lin, Jun Lei
  • Publication number: 20160234858
    Abstract: Provided are a resource scheduling method and device; the method comprises: scheduling resource according to the transmission demands; and configuring a frame structure with a non-fixed frame length matching the scheduled resource. The method according to the present invention prevents wastage of wireless resources caused by competition conflict or random back-off, and can better adapt to the demands of different kinds of data services with varied features in the future.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 11, 2016
    Inventors: DONGSHAN BAO, JING WANG, SHENFA LIU, YONGBO ZENG, YUBAO ZHOU, ZHIGANG YAN, JUN LEI, LIJUN PAN, FEIFEI WANG
  • Patent number: 9391760
    Abstract: The present invention provides a method for accessing a wireless network, so as to implement acquisition of system synchronization during the process of accessing the wireless network in the situation that a physical frame structure can be configured dynamically. The method for acquiring system synchronization comprises: searching a physical frame on a current sub-channel; resolving a system information channel (SICH) and a control channel (CCH) in the found physical frame, wherein the SICH indicates a structure of the physical frame, and the CCH indicates allocation of system resources; and acquiring a system parameter from the physical frame by using the resolving result. A device for implementing the above method is further provided.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: July 12, 2016
    Assignee: BEIJING NUFRONT MOBILE MULTIMEDIA TECHNOLOGY CO., LTD
    Inventors: Dongshan Bao, Huijuan Yao, Yubao Zhou, Xiaoyan Yu, Jun Lei, Shenfa Liu, Jing Wang, Lijun Pan, Zhigang Yan
  • Patent number: 9351315
    Abstract: Provided are a resource scheduling method and device; the method comprises: scheduling resource according to the transmission demands; and configuring a frame structure with a non-fixed frame length matching the scheduled resource. The method according to the present invention prevents wastage of wireless resources caused by competition conflict or random back-off, and can better adapt to the demands of different kinds of data services with varied features in the future.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: May 24, 2016
    Assignee: BEIJING NUFRONT MOBILE MULTIMEDIA TECHNOLOGY CO. LTD.
    Inventors: Dongshan Bao, Jing Wang, Shenfa Liu, Yongbo Zeng, Yubao Zhou, Zhigang Yan, Jun Lei, Lijun Pan, Feifei Wang
  • Patent number: 9346724
    Abstract: A method for preparing 2,3,3,3-tetrafluoropropene, including: a) heating and vaporizing hydrogen fluoride and 1,1,2,3-tetrachloropropene (TCP), and introducing hydrogen fluoride and TCP to a first reactor for reaction in the presence of an A-type catalyst to yield a first product mixture including 2,3-dichloro-3,3-difluoropropene (“HCFO-1232xf”), where the mole ratio between hydrogen fluoride and TCP is between 5:1 and 60:1, the reaction temperature is between 200 and 500° C., and the space velocity is between 200 and 2000 h?1; b) preheating the first product mixture including HCFO-1232xf, introducing the first product mixture including HCFO-1232xf to a second reactor for reaction in the presence of a B-type catalyst to yield a second product mixture including HFO-1234yf, where the temperature of the preheated first product mixture including HCFO-1232xf is higher than the reaction temperature of the first reactor and lower than the reaction temperature of the second reactor.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: May 24, 2016
    Assignee: Zhejiang Quhua Fluor-Chemistry Co., Ltd.
    Inventors: Jun Lei, Bo Yang, Yan Zhang, Yang Zhao, Huadong Zhou, Qiang Zhou, Gang Su
  • Publication number: 20160112086
    Abstract: The present disclosure provides electronic devices and methods for using the electronic device. The electronic device includes: a transparent case and a transparent liquid battery. The transparent case is sealed to form a holding cavity in which the transparent liquid battery, a display screen component, a mainboard component, an accessory component and a power control component are disposed. The mainboard component is connected to the display screen component made from transparent material. The mainboard component is connected to the accessory component. The mainboard component is connected to the power control component. The electronic device is made from transparent material so that the electronic device is featured by transparency, without additionally equipping the rear cover of the electronic device with a transparent protective casing.
    Type: Application
    Filed: December 30, 2015
    Publication date: April 21, 2016
    Applicant: Xiaomi Inc.
    Inventor: Jun LEI
  • Publication number: 20160096787
    Abstract: A method for preparing 2,3,3,3-tetrafluoropropene, including: a) heating and vaporizing hydrogen fluoride and 1,1,2,3-tetrachloropropene (TCP), and introducing hydrogen fluoride and TCP to a first reactor for reaction in the presence of an A-type catalyst to yield a first product mixture including 2,3-dichloro-3,3-difluoropropene (“HCFO-1232xf”), where the mole ratio between hydrogen fluoride and TCP is between 5:1 and 60:1, the reaction temperature is between 200 and 500° C., and the space velocity is between 200 and 2000 h?1; b) preheating the first product mixture including HCFO-1232xf, introducing the first product mixture including HCFO-1232xf to a second reactor for reaction in the presence of a B-type catalyst to yield a second product mixture including HFO-1234yf, where the temperature of the preheated first product mixture including HCFO-1232xf is higher than the reaction temperature of the first reactor and lower than the reaction temperature of the second reactor.
    Type: Application
    Filed: December 11, 2015
    Publication date: April 7, 2016
    Inventors: Jun LEI, Bo YANG, Yan ZHANG, Yang ZHAO, Huadong ZHOU, Qiang ZHOU, Gang SU
  • Patent number: 9295002
    Abstract: A method for open loop uplink access power control comprises: estimating the uplink transmission path loss according to received signal power of a station (STA) and the transmit power of a central access point (CAP); determining the transmission bandwidth allocated by the CAP for uplink transmission and deviation adjustment of the CAP; determining a modulation-coding mode and determining requirements of the carrier-to-noise ratio corresponding to the modulation-coding mode; and calculating a target value for adjusting the transmit power of the STA. Also disclosed is a device for open loop uplink access power control.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: March 22, 2016
    Assignee: Nufront Mobile Communications Technology Co., Ltd.
    Inventors: Dongshan Bao, Lijun Pan, Huijuan Yao, Yubao Zhou, Xiaoyan Yu, Jun Lei, Jing Wang, Shenfa Liu, Zhigang Yan